NSCP NUMBERS Flashcards
1
Q
Number of plumbing plan sets submitted for permit application
A
6 sets
2
Q
Number of approved plan sets retained by the Administrative Authority
A
1 set
3
Q
Number of plan sets returned to the applicant
A
2 sets
4
Q
Number of plan sets returned to the Owner
A
2 sets
5
Q
Number of plan sets kept at the job site
A
1 set
6
Q
Expiration of plumbing permit if work not commenced
A
1 year
7
Q
Expiration of plumbing permit if work suspended or abandoned
A
120 days
8
Q
Renewal fee for expired plumbing permit
A
50% of the original fee
9
Q
Deadline for inspection request after equipment replacement
A
Within 72 hours
10
Q
Definition of an alley
A
2m to less than 3m wide
11
Q
Definition of a court
A
Bounded by 2 or more sides
12
Q
Definition of unobstructed yards
A
Open from ground to sky
13
Q
Function of a group vent
A
Serves 2 or more traps
14
Q
Minimum branch interval height
A
2.43 m
15
Q
Melting point for brazed joints
A
Above 449°C but below part’s melting temp
16
Q
Melting point for soldered joints
A
1490°C, 427°C
17
Q
Minimum distance of building sewer from building foundation
A
0.60 m
18
Q
Distance of mobile home park sewer from last mobile home
A
0.60 m
19
Q
Maximum angle for horizontal pipes
A
45 degrees
20
Q
Maximum angle for vertical pipes
A
45 degrees
21
Q
Combustion temperature for combustible construction
A
756°C
22
Q
Volume defining a confined space
A
Less than 2501.4 cu. m
23
Q
Water flow conversion for fixture units
A
28.3 lpm, 7.48 gpm, 30 qtpm, 1 cftpm
24
Q
Minimum capacity of a grease interceptor
A
3 cu. m.
25
Number of traps served by a unit vent
2
26
Plumbing unit inventory (each counts as 1 unit)
Water meter, water closet, lavatory, shower head and drain, kitchen sink, laundry tray, 3 floor drains, 4 faucets/hose bibb
27
Recommended slope for horizontal drainage pipes
2%
28
Permissible slope for larger diameter pipes (203mm and above)
0.50%
29
Minimum size difference for double sanitary tees
2 pipe sizes
30
Minimum depth of building sewer below ground
0.30 m
31
Maximum depth of building sewer below ground
0.60 m
32
Clear height above pipe in tunnels
0.6 m
33
Maximum tunnel length without support
1/2 the depth of trench or 2.4 m
34
Required backfill above pipe
0.30 m clean earth
35
Minimum metal thickness for special-use sinks
GA 16 (1.6 mm)
36
Minimum thickness for waste tailpieces
GA 20 (0.8 mm)
37
Minimum diameter for sink tailpieces
38 mm O.D.
38
Minimum diameter for lavatory tailpieces
32 mm O.D.
39
Clearance requirements around water closets and urinals
0.375 m to side wall, 0.75 m center to center for closets; 0.30 m to side wall, 0.60 m center to center for urinals
40
Minimum shower dimensions
Interior area: 0.6 sq. m, Minimum diameter: 762 mm, Threshold height: 25.4 mm to 228 mm
41
Lining material height above shower threshold for above-ground installations
At least 76 mm
42
Extension of lining materials upward on rough jambs
76 mm
43
Standard grade of roofing felt for shower sub-pans
6.8 kg
44
Extension of folds, laps, and webbing in shower linings
101 mm
45
Minimum tensile strength of mesh/webbing for lining
0.9 kg/mm
46
Prohibition on nailing or perforating linings above the threshold
L 25.4 mm
47
Minimum weight of lead pans or liners
19.6 kg/m2
48
Minimum thickness of copper pans or liners
GA 24 (0.5 mm)
49
Slope of gutters in public or gang shower rooms
20/0
50
Maximum spacing of gutter drains in public shower rooms
4.9 m
51
Maximum temperature for hot water delivery
48.88°C
52
Equivalent lavatory unit for a 609.6 mm wide wash sink
1 lavatory
53
Equivalent lavatory unit for a 457.2 mm diameter circular basin
1 lavatory
54
Lavatory to person ratio in hazardous environments
1:50
55
Laundry tray to person ratio
0.111111111
56
Slope sink tray to person ratio
1:30
57
Water closet and urinal to person ratio for temporary workers
1:30
58
Side lining requirement around urinals
0.6 m
59
Height of non-absorbent lining above urinals
1.2 m
60
Drinking fountain to person ratio in public buildings
0.09375
61
Additional drinking fountain requirement
1 per 150 persons beyond the first 75
62
Notice period for inspection readiness
3 days
63
Water head for pipe testing
3 meters
64
Duration to hold water before inspection starts
15 minutes
65
Air pressure gauge for testing
34.5 kPa
66
Duration to hold air pressure during test
15 minutes
67
Water pressure for piping tests
50% above working pressure
68
Air pressure alternative for water test
344.5 kPa
69
Minimum air gap for fixtures not affected by side walls
2 x diameter
70
Minimum air gap for fixtures affected by side walls
3 x diameter
71
Approval conditions for air gaps smaller than 25mm
Tested with vacuums from 0 to 63.5 cm of mercury
72
Minimum elevation of Atmospheric Vacuum Breaker (AVB)
150 mm above piping and rim
73
Space clearance for assembly installations
30.5 cm
74
Minimum elevation of Spill-Proof Pressure Type vacuum breaker
152 mm above piping and rim
75
Elevation requirement for installations with platforms
1.52 m above floor/grade
76
Minimum air gap for water distribution systems
25 mm or 2 pipe diameters
77
Installation height of atmospheric vacuum breaker
152 mm above flood level rim
78
Minimum operating temperature for backflow prevention devices
43.3°C
79
Minimum height of AVB above overflow rim
152 mm
80
Minimum height of ballcock above overflow pipe
25 mm
81
Installation height for non-removable hose bibb-type backflow preventers
152 mm above point of usage
82
Size requirement for galvanization in water piping
51 mm or smaller
83
Maximum allowable lead content in water pipes
8%
84
Mesh size for gravity tanks vent screens
14 to 18 per 25 mm
85
Indicators of water pressure adequacy
Less than 103 kPa inadequate, more than 551 kPa excessive
86
Maximum pressure for relief valves
1033 kPa
87
Drain pipe elevation for pressure relief valves
152 to 600 mm above ground
88
Minimum separation of water and sewer lines
0.30 m
89
Maximum distance of unions from equipment
0.30 m
90
Support intervals for piping
4 feet (1219 mm)
91
Support requirement for trap arms longer than 3 feet (914 mm)
As close as possible
92
Minimum size of water service pipe
19 mm Ø
93
Minimum size of building supply pipes
13 mm Ø
94
Minimum clearance for galvanized pipes above ground
152 mm
95
Minimum depth for vitrified clay pipes below ground
0.30 m
96
Allowable grade for threads of draining fittings
2%
97
Fixture unit rating for various installations
Clothes washer: 3 units; Sump pump/ejector: 0.063 L/S per unit
98
Intervals for cleanouts on piping runs
15 m
99
Minimum front clearance for cleanouts
305 mm for ≤51 mm, 450 mm for >51 mm
100
Vertical and horizontal clearance for underground cleanouts
0.45 m vertical, 0.75 m horizontal
101
Maximum distance for underfloor cleanouts from access points
6.1 m
102
Minimum size of pump discharge pipe from a sump with a water closet
50.8 mm
103
Minimum height of the lowest inlet above the high water level in sumps
51 mm
104
Minimum size of vent for sumps and receiving tanks
51 mm Ø
105
Minimum air pressure per meter of height for sewage elevation
3 kg/m
106
Distance for no connections below suds-producing fixtures in a stack
2.4 m
107
Maximum number of water closets or traps on any vertical stack
4
108
Maximum number of water closets or traps on any horizontal branch
3
109
Minimum diameter of an individual vent
32 mm Ø
110
Maximum length of unvented indirect waste pipe
Between 1.5 m and 4.6 m
111
Maximum diameter of indirect waste pipe relative to drain outlet
Less than 4.6 m
112
Minimum diameter of indirect waste pipe
13 mm Ø
113
Extension of standpipe for clothes washer above its trap
0.45 m to 0.80 m
114
Height of the trap for clothes washer standpipe above the floor
0.15 m to 0.45 m
115
Maximum temperature for water discharged into the drainage system
Not specified
116
Minimum depth of seal for condenser and sump traps
152 mm
117
Diameter of siphon breaker in deep seal traps
19 mm Ø
118
Minimum thickness of concrete walls/bottoms in sumps
102 mm
119
Minimum plaster thickness inside sumps
13 mm
120
Minimum metal thickness for condensers
GA 12 (2.77 mm)
121
Minimum thickness of pipe for acid/corrosive chemical exposure
3.2 mm
122
Minimum area of CW & VS vent
1/2 the area of the drain
123
Fixture unit limit for wet venting
1 and 2 F.U.
124
Maximum number of fixtures served by a vertical wet vent
4
125
Minimum size of a wet vent
51 mm Ø
126
Required separation for CW & VS branch venting
More than 4.6 m
127
Minimum waste pipe and trap size in CW & VS
2 pipe sizes larger
128
Maximum length of tailpiece
0.60 m
129
Minimum water seal for sand interceptors
152 mm
130
Flow rate range for individual grease traps
1.3 L/s to 3.4 L/s
131
Maximum number of fixtures connected to one grease trap
4
132
Maximum horizontal distance from fixture outlet to grease trap
1.2 m
133
Maximum vertical distance from fixture outlet to grease trap
0.75 m
134
Minimum water seal for grease traps
51 mm
135
Minimum clearance of galvanized pipes above ground
150 mm
136
Minimum rise of vent above flood level rim before horizontal offset
152 mm
137
Required size increase of vent stack above reconnection
1 pipe size increase
138
Minimum extension of a vent pipe above the roof or firewall
0.15 m
139
Minimum clearance of a vent through roof from any vertical surface
0.30 m
140
Horizontal distance of a vent from openable windows, etc.
3 meters
141
Vertical distance of a vent above openable windows, etc.
0.90 m
142
Horizontal distance of a vent from lot lines
0.90 m
143
Vertical extension of a vent above a multi-use roof
2.1 m
144
Number of stories requiring a parallel vent stack
10 or more
145
Yoke vent interval
Every 5 floors
146
Yoke vent connection height above the floor
Not less than 1 m
147
Minimum size of an individual vent
32 mm
148
Fraction of vent length allowed horizontally
Not specified
149
Maximum number of fixtures served by a common vertical vent
2
150
Minimum size for screening solids from laundry discharge
12.7 mm or larger
151
Minimum outlet size of a sand interceptor
76 mm Ø
152
Minimum net opening dimension of sand interceptor inlet
0.2 m²
153
Minimum depth of sand interceptor under outlet pipe
610 mm
154
Area increase of inlet section per additional flow of 18.9 LPM
0.09 m²
155
Proportion of inlet section for sand interceptor outlet
500%
156
Distance of trap to vent for different pipe diameters
32mm Ø: 762mm, 38mm Ø: 1067mm, 51mm Ø: 1524mm, 76mm Ø: 1829mm, 102mm Ø: 3048mm
157
Maximum length between water closet and vent
1829mm
158
Minimum thickness for rainwater downspout or conductor
GA 26
159
Minimum net inlet area of roof drains with different strainers
Dome-type: 1.5x outlet area, Roof deck: 2x outlet area
160
Rainfall intensity used around Manila
102 mm/hour
161
Additional percentages for rain exposure on building sides
1 wall: 50%, 2 adjacent walls: 35%, 2 opposite walls: 0%, tall building side: 50%
162
Equivalent rectangular dimensions for semi-circular gutter bottoms
Depth: 0.392x diameter, Width: 0.8862x diameter
163
Minimum diameter of building sewer if public sewer > 61m away
Not specified, but not less than building drain size
164
Recommended and allowable slopes for different sewer diameters
102 mm or 152.4mm: 1%, 203 mm or larger: 0.5%
165
Minimum building sewer depth below ground surface
0.30 m
166
Maximum distance between manholes
91 m
167
Minimum horizontal distance from building to sewer
0.60 m
168
Minimum horizontal distance from property line to sewer
0
169
Minimum distance from water supply wells or streams to sewer
15.2 m
170
Allowable reduction for water supply wells with approved materials
7.6 m from 15.2 m
171
Maximum/Minimum fixture units for various sewer diameters at 2% slope
152mm: 3,900/275, 203mm: 6,800/300, 254mm: not specified
172
Minimum depth for molten pig lead in joints
25.4 mm
173
Minimum wall thickness for Schedule 80 threaded plastic pipe
Schedule 80
174
Minimum weight and thickness for different lead uses
Lead safe pans: 19.56 kg/m², 1.6 mm; Flashing/vent terminals: 14.63 kg/m², 1.2 mm
175
Minimum wall thickness for lead bends and traps
3.2 mm
176
Minimum thickness for caulked-on closet rings or flanges
6.4 mm
177
Minimum water pressure requirements for different plumbing groups
Flushometer valves: 103.42 kPa, Flush tanks: 55.16 kPa
178
Multiplier for elevation above water main to determine loss in static pressure
9.79
179
Multiplier for maximum separate demands for fixtures with combined hot and cold water
75%
180
Maximum water velocity for sizing supply piping
3 m/sec
181
Minimum area of trench bottom for disposal field
14 m²
182
Sidewall area added to trench bottom absorption
1 ft to 3 ft
183
Minimum additional area for leaching beds instead of trenches
50%
184
Minimum separation of leach bed from water table
1.5 m
185
Minimum compartments in a septic tank (plumbing code)
2
186
Minimum compartments in a septic tank (new ordinance)
3
187
Minimum capacity of septic tank inlet compartment
2/3 of tank capacity
188
Minimum liquid capacity of septic tank inlet compartment
2 m³
189
Minimum length of septic tank inlet compartment
1.5 m
190
Minimum width of septic tank
0.9 m
191
Maximum capacity of secondary compartment in septic tank
1/3 of tank capacity
192
Minimum capacity of secondary compartment in septic tank
1 m³
193
Minimum length of secondary compartment if tank > 6 m³
1.5 m
194
Minimum number of manholes for septic tank
2
195
Minimum dimension of a septic tank manhole
508 mm
196
Requirement for additional manhole if inlet compartment > 3.7 m
Yes
197
Minimum size of vertical leg of inlet and outlet fitting in septic tank
104.6 mm
198
Minimum horizontal dimension of baffle type fitting
106.6 mm
199
Minimum extension of inlet and outlet pipe or baffle above water surface
101.6 mm
200
Minimum extension of inlet and outlet pipe or baffle below water surface
304.8 mm
201
Minimum vertical clearance of inlet pipe above outlet pipe
50.8 mm
202
Minimum extension of septic tank sidewalls above liquid depth
228.6 mm
203
Minimum vertical clearance of septic tank cover above back vent openings
50.8 mm
204
Minimum extension of septic tank partitions or baffles above liquid level
101.6 mm
205
Minimum size of inverted fitting in septic tank
104.6 mm
206
Minimum earth load support capacity of septic tank covers
14.4
207
Minimum extension of bituminous coating in septic tanks
101.6 mm
208
Minimum wall thickness of steel septic tank
GA 12 (2.8 mm)
209
Ranking depth to remove materials from trenches before placing filter
25.44 mm
210
Size range of filter materials for trenches
19.1 - 63.5 mm
211
Termination of filter material from seepage pit
1.5 m
212
Minimum vertical clearance in distribution box
25.4 mm
213
Required line length for dosing tank
More than 152.4 meters
214
Interval for sewage discharge from dosing tank
3 – 4 hours
215
Number of siphons or pumps for long pipe lengths
2
216
Minimum number of drain lines per field
1
217
Maximum length of each line in a disposal field
305 m
218
Minimum bottom width of trench
457.2 mm
219
Maximum bottom width of trench
914.4 mm
220
Minimum depth of earth cover over drain lines
304.8 mm
221
Recommended depth of earth cover over drain lines
457.2 mm
222
Minimum thickness of filter material under drain lines
304.8 mm
223
Minimum thickness of filter material over drain lines
50.8 mm
224
Minimum spacing between leaching beds
1.2 m
225
Horizontal spacing of distribution drain lines
1.8 m
226
Distance from the perimeter of leaching bed to distribution line
0.9 m
227
Conditions for cesspool installation
Public sewer available in less than 2 years
228
Minimum sidewall depth of cesspool below inlet
6.1 m
229
Minimum extension of vented leg in cesspool
403.8 mm
230
Minimum vertical clearance of outlet flow line below cesspool inlet
152.4 mm
231
Minimum number of compartments for interceptors
2
232
Minimum horizontal distance of tree from septic system
4.6 m
233
Minimum extension of vented leg fitting below seepage pit inlet
304.8 mm
234
Minimum diameter of seepage pit
2.2 m
235
Minimum thickness of seepage pit concrete wall
101.6 mm
236
Thickness of chamfered concrete block in seepage pits
304.8 mm
237
Minimum thickness of clean gravel or rock in seepage pit
19.1 mm
238
Thickness behind brick, block, or concrete liner
152.4 mm
239
Minimum compressive strength of brick or block
17,225 kPa
240
Minimum thickness of cement mortar covering for seepage pit arch or dome
50.8 mm
241
Minimum extension of mortar covering beyond the sidewall of the seepage pit
152.4 mm
242
Minimum thickness of reinforced concrete slab cover
127 mm
243
Minimum earth load support capacity of slab cover
19.2 kPa
244
Minimum dimension of inspection hole for seepage pit
228.6 mm
245
Depth of top of seepage pit arch or cover below ground surface
457.2 mm to 1.2 m
246
Maximum absorption capacity for Coarse Sand or Gravel
203.7 L/m²
247
Maximum absorption capacity for Fine Sand
162.9 L/m²
248
Maximum absorption capacity for Sandy Loam or Sandy Clay
101.9 L/m²
249
Maximum absorption capacity for Clay with considerable sand or gravel
44.8 L/m²
250
Maximum absorption capacity for Clay with a small amount of sand or gravel
33.8 L/m²
